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SVOM_FIELD00044
SVOM
44
/SVOM
GRB 251025B: Swift observation summary
This is a confirmed GRB (GRB 251025B), the afterglow is source 1 -- please see the GRB results at https://www.swift.ac.uk/xrt_products/03000153 for updated analysis
.| Mission: | SVOM/ECLAIRs |
|---|---|
| SVOM RA: | 29.565° |
| SVOM Dec: | +30.242° |
| SVOM Err: | 4.8 arcmin |
| T0: | 2025-10-25 14:24:00 UT |
| Galactic: | 139.67° -30.45° |
| Galactic NH: | 4.72× 1020 cm-2 |
| Sun distance: | 161.94° |
|---|---|
| Sun angle: | 11.98 [hr](East of Sun) |
| Moon distance: | 140.70° |
| Visibility of this field. | |
| First slew: | 2025-10-25 15:06:39 UT |
| First observation: | 2025-10-25 15:06:08 UT |
| First analysis: | 2025-10-25 18:01:38 UT |
- Data analysed so far:
- ObsID: 03000153001 with 1.7 ks exposure.
So far 1 fields have been scheduled for observations. Data are available and processed for 1 of these.
- 3000153 — 1.7 ks of cleaned data taken between 2025-10-25 15:06:37 and 2025-10-25 15:38:51
Details of afterglow candidates
1 sources were found which matches the afterglow criteria.
| # | RA (J2000) | Dec (J2000) | Err901 | Detection Flag2 |
Rank3 | Dist from SVOM/ECLAIRs pos |
Exposure | Notes | Vizier |
|---|---|---|---|---|---|---|---|---|---|
| 1 [details] |
01h 58m 07.46s | +30° 18′ 13.4″ | 2.7′′ * | Good | 1 (T) | 4.1′ | 1.7 ks | The source is 4.0-σ above the RASS limit. |  |
1 Radius, 90% confidence.
2 Indicates how likely the source is to be real. See the LSXPS documentation.
3 T=Transient Source, O=Outbursting known source, U=Uncatalogued X-ray source, K=Known X-ray source.
* The position was enhanced using astrometry derived from the Swift UVOT.
† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.
Sources found so far
So far 1 sources have been found in the XRT data. 0 sources match catalogued sources.
| # | RA (J2000) | Dec (J2000) | Err901 | Detection Flag2 |
Rank3 | Dist from SVOM/ECLAIRs pos |
Exposure | Notes | Vizier |
|---|---|---|---|---|---|---|---|---|---|
| 1 [details] |
01h 58m 07.46s | +30° 18′ 13.4″ | 2.7′′ * | Good | 1 (T) | 4.1′ | 1.7 ks | The source is 4.0-σ above the RASS limit. | |
1 Radius, 90% confidence.
2 Indicates how likely the source is to be real. See the LSXPS documentation.
3 T=Transient Source, O=Outbursting known source, U=Uncatalogued X-ray source, K=Known X-ray source.
* The position was enhanced using astrometry derived from the Swift UVOT.
† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.
Image
Select image style: Draggable PNG | JS9.
